eCalc runs on all computer, tablets and smartphones
having a state-of-the-art web browser installed, independent of
the operating system (iOS, Win, Android, Unix,...)

free of advertisement

Extend or renew existing Membership:
Get a special discount for renewal.
An existing membership can be extended any time by any membership
periode of the same membership type as long as the same
email address is used for payment.

Terms and Conditions:
eCalc is subject to copyright and intellectual property rights.
Your membership is for personal use only. All
values are calculated and may deviate from the real. Before flight
you have to recheck the actual max. values. They must stay within
the manufactuerers limitations.The functionality of eCalc may change
without any notice. System outage or unforseen service
discountinuation are not refundable. Use of the calculators is on
your own risk - We reject any liablity.
Any misuse or extensive use will result in expiration of your
membership without refund.
(For usage with commercial intent or
commercial use please contact info[at]ecalc for an offer.)

Secured Payment & Purchase Protection:Choose your membership. Prices are in US$
(w/o VAT).
We accept
secured payment by PayPal.com or Stripe.com. Choose your membership
plan below for immediate access and pay by:[Buy Now]
with PayPal: use your PayPal account or your Credit
Card. The Payment service of
PayPal will issue a receipt and benefit from PayPals
extensive purchase protection. How to
change language on PayPal payment form... Check
the PayPal page for language selection.[Pay with Card]
with Stripe: use your Credit Card for safe,
fast and easy payment. The Payment service of Stripe will issue a
receipt.Manual invoices are issued for
commercial users only. (Remark for eCheck and debit card:
access will be granted after transfer of money. This may take 3-10
days).Note: Your payment is fully handeled by PayPal or Stripe - we do not store
any card details.

I agree to the terms and conditions for private use only:
With your Payment you accept these terms and our
general terms and
conditions. Your membership does NOT renew automatically.

membership
for

12 month

6 month

3 month

1 month

eCalc
Bundle
all 4 RC Calculators

$10.95 only iso
$11.95

$7.95

$5.95

$3.95

propCalc
& setupFinderfor
Airplane

$6.49 iso
$6.99

$4.99

$3.49

$1.99 iso
$2.49

xcopterCalcfor
multicopters

$5.89 iso
$5.99

$3.99

$2.99

$1.99

heliCalcfor
Helicopters

$5.89 iso
$5.99

$3.99

$2.99

$1.49 iso
$1.99

fanCalcfor
Ducted Fans

$5.89 iso
$5.99

$3.99

$2.99

$0.99 only iso
$1.99

torqueCalcfor
industrial applications

$17.95 iso
$19.95

not available

not available

not available

membership for

12 month

6 month

3 month

1 month

Remark: Prices are without VAT and the VAT reverse procedure
applies. Exception B2C in EC: eCalc will settle your local VAT.

Payment by PayPal account: after clicking on «Buy
Now» you will be redirected to PayPal. Choose «Pay with my PayPal
account» and login to your PayPal accound. Follow the payment
process... At the end follow the link «Return to info[at]ecalc.ch»
and your eCalc login details for immediate access will be dispayed.

Payment by Credit Card with PayPal: after clicking on «Buy Now»
you will be redirected to PayPal. Choose «Create an Account» and pay
easy and secure with your Credit Card. Follow the payment process...
At the end follow the link «Return to info[at]ecalc.ch» and your
eCalc login details for immediate access will be dispayed.Note: Your payment is fully handeled by PayPal - we do not store
any card details. To decrease credit card fees PayPal did change
there policy by Janary 1st 2017. A credit card payment is still
possible but only by creating an account.Some people hesitate do
create a PayPal account - why? PayPal offers an
extensive and sophisicated security for byers including purchase
protection. Think about this: I personaly
prefere to have my credit card details at a single place (PayPal)
and pay online by PayPal instead of spreading my credit cartd
details all over the different web shops.

Payment by Credit Card with Stripe: after clicking on «Pay
with Card» a dialog will open requesting your card details. Follow
the payment process for immediate access.

System Requirments:
eCalc is a Web Application and runs on computers, tablets and
smartphones with a state-of-the-art web browser (Internet Explorer
9+, FireFox, Chrome, Safari and Opera) indepentent of the operating
system (Win, iOS, Anreoid, Unix,...).

Refund:
We refund your membership only in exeptional cases when requested
within 3 days of your sign-up. Please email to info[at]ecalc.ch with
your username. If refund applies we refund your membership fee less
payment fee of PayPal or card fee of Stripe.